JPH0427431U - - Google Patents
Info
- Publication number
- JPH0427431U JPH0427431U JP1990067124U JP6712490U JPH0427431U JP H0427431 U JPH0427431 U JP H0427431U JP 1990067124 U JP1990067124 U JP 1990067124U JP 6712490 U JP6712490 U JP 6712490U JP H0427431 U JPH0427431 U JP H0427431U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- sector
- photointerrupter
- timer
- shutter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005856 abnormality Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
- G03B7/10—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device a servo-motor providing energy to move the setting member
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/18—Signals indicating condition of a camera member or suitability of light
- G03B17/20—Signals indicating condition of a camera member or suitability of light visible in viewfinder
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B43/00—Testing correct operation of photographic apparatus or parts thereof
- G03B43/02—Testing shutters
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/26—Power supplies; Circuitry or arrangement to switch on the power source; Circuitry to check the power source voltage
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/58—Means for varying duration of "open" period of shutter
- G03B9/62—Means for varying duration of "open" period of shutter by varying interval of time between end of opening movement and beginning of closing movement
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Shutters For Cameras (AREA)
- Exposure Control For Cameras (AREA)
Description
第1図は本考案によるカメラ用シヤツタのブロ
ツク図、第2図は第1図に係わるセクターおよび
ロータの構成図、第3図は第1図に係わる回路図
、第4図はシヤツタ開閉のシーケンスを示す動作
図である。 1……ロータ(モータ)、5……ステータ(モ
ータ)、6……モータコイル(モータ)、16,
17……セクター、19……フオトカプラ(フオ
トインタラプタ信号出力手段)、20……シヤツ
タ異常検出回路(手段)、TIM……タイマー。
ツク図、第2図は第1図に係わるセクターおよび
ロータの構成図、第3図は第1図に係わる回路図
、第4図はシヤツタ開閉のシーケンスを示す動作
図である。 1……ロータ(モータ)、5……ステータ(モ
ータ)、6……モータコイル(モータ)、16,
17……セクター、19……フオトカプラ(フオ
トインタラプタ信号出力手段)、20……シヤツ
タ異常検出回路(手段)、TIM……タイマー。
Claims (1)
- モータと、前記モータの回転でシヤツタ開口を
開閉するセクターと、前記セクターに設けられた
検出部を介して発光素子から受光素子へ投光され
る光束で動作しフオトインタラプタ信号を出力す
るフオトインタラプタ信号出力手段と、前記フオ
トインタラプタ信号でセツトされ所定の時間計数
後にリセツトするタイマーと、前記タイマーが前
記所定の時間計数を完了する前に前記フオトイン
タラプタ信号のレベルが変化しないときは前記セ
クターを閉成し異常信号を出力するシヤツタ異常
検出手段とを備えたことを特徴とするカメラ用シ
ヤツタ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990067124U JP2517473Y2 (ja) | 1990-06-25 | 1990-06-25 | カメラ用シャッタ |
DE4120451A DE4120451B4 (de) | 1990-06-25 | 1991-06-20 | Kameraverschluß |
GB9113598A GB2246642B (en) | 1990-06-25 | 1991-06-24 | Camera shutter |
US07/719,875 US5181063A (en) | 1990-06-25 | 1991-06-24 | Camera shutter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990067124U JP2517473Y2 (ja) | 1990-06-25 | 1990-06-25 | カメラ用シャッタ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0427431U true JPH0427431U (ja) | 1992-03-04 |
JP2517473Y2 JP2517473Y2 (ja) | 1996-11-20 |
Family
ID=13335843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1990067124U Expired - Lifetime JP2517473Y2 (ja) | 1990-06-25 | 1990-06-25 | カメラ用シャッタ |
Country Status (4)
Country | Link |
---|---|
US (1) | US5181063A (ja) |
JP (1) | JP2517473Y2 (ja) |
DE (1) | DE4120451B4 (ja) |
GB (1) | GB2246642B (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5761552A (en) * | 1993-03-01 | 1998-06-02 | Nikon Corporation | Camera having shutter instrumentation device for measuring shutter speed |
US5953545A (en) * | 1996-01-26 | 1999-09-14 | Asahi Kogaku Kogyo Kabushiki Kaisha | Exposure controlling device for camera |
GB2309535B (en) * | 1996-01-26 | 2000-08-09 | Asahi Optical Co Ltd | Exposure controlling device for camera |
JPH11288019A (ja) * | 1998-04-03 | 1999-10-19 | Seiko Precision Inc | カメラ用シャッタ |
JP4384284B2 (ja) * | 1999-03-16 | 2009-12-16 | オリンパス株式会社 | カメラ |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS502932A (ja) * | 1973-05-09 | 1975-01-13 | ||
JPH0625837B2 (ja) * | 1984-05-09 | 1994-04-06 | 株式会社精工舎 | カメラ用シヤツタ |
GB2185586B (en) * | 1986-01-13 | 1989-11-22 | Seikosha Kk | Shutter control device for a camera |
JPS62186237A (ja) * | 1986-02-12 | 1987-08-14 | Minolta Camera Co Ltd | バイモルフ駆動素子を有するカメラ |
DE3843437C2 (de) * | 1987-12-26 | 1994-02-24 | Seikosha Kk | Einrichtung zur Betätigung der Verschlußflügel eines Verschlusses |
JP2529345B2 (ja) * | 1988-04-01 | 1996-08-28 | 富士写真フイルム株式会社 | プログラムシャッタ駆動装置 |
-
1990
- 1990-06-25 JP JP1990067124U patent/JP2517473Y2/ja not_active Expired - Lifetime
-
1991
- 1991-06-20 DE DE4120451A patent/DE4120451B4/de not_active Expired - Fee Related
- 1991-06-24 GB GB9113598A patent/GB2246642B/en not_active Expired - Fee Related
- 1991-06-24 US US07/719,875 patent/US5181063A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5181063A (en) | 1993-01-19 |
GB9113598D0 (en) | 1991-08-14 |
GB2246642A (en) | 1992-02-05 |
DE4120451A1 (de) | 1992-01-02 |
GB2246642B (en) | 1994-04-06 |
JP2517473Y2 (ja) | 1996-11-20 |
DE4120451B4 (de) | 2005-10-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |